<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
  <style>
    .div1::first-letter{
      color: red;
      font-size: 100px;
    }
  </style>
</head>
<body>
<div class="div1">
  Lorem ipsum dolor sit amet, consectetur adipisicing elit. Aspernatur, consectetur consequatur distinctio error esse est ex explicabo illo, impedit libero maxime nam, obcaecati officiis quia quisquam temporibus vel veniam! Deserunt.
</div>
</body>
</html>